test(json2): build a decimal-comma locale for the numeric locale test

Linux runners have no decimal-comma locale, so guest_json_numeric_locale
skipped there. Build xx_COMMA from a charmap and an LC_NUMERIC source
shipped with the test as a CTest fixture, point the test at it with
LOCPATH and try it first.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

core/libs/prx/libSceJson2/CMakeLists.txt

@@ -10,6 +10,15 @@ if(BUILD_TESTING)
     add_test(NAME guest_json COMMAND guest_json_tests)
     add_test(NAME guest_json_numeric_locale COMMAND guest_json_tests --numeric-locale)
     set_tests_properties(guest_json_numeric_locale PROPERTIES SKIP_RETURN_CODE 77)
+    if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+        set(numeric_locale_dir ${CMAKE_CURRENT_BINARY_DIR}/numeric-locale)
+        set(numeric_locale_data ${LIBS_INCLUDE_DIR}/tests/numeric-locale)
+        add_test(NAME guest_json_numeric_locale_setup COMMAND sh -c
+            "rm -rf '${numeric_locale_dir}' && mkdir -p '${numeric_locale_dir}' && I18NPATH='${numeric_locale_dir}' localedef -c -f '${numeric_locale_data}/comma.charmap' -i '${numeric_locale_data}/comma.locale' '${numeric_locale_dir}/xx_COMMA'; test -f '${numeric_locale_dir}/xx_COMMA/LC_NUMERIC'")
+        set_tests_properties(guest_json_numeric_locale_setup PROPERTIES FIXTURES_SETUP json_numeric_locale)
+        set_tests_properties(guest_json_numeric_locale PROPERTIES FIXTURES_REQUIRED json_numeric_locale
+            ENVIRONMENT "LOCPATH=${numeric_locale_dir}")
+    endif()
     if(WIN32)
         set_tests_properties(guest_json guest_json_numeric_locale PROPERTIES ENVIRONMENT_MODIFICATION
             "PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceJson2>")

core/libs/tests/GuestJson.cpp

@@ -1380,7 +1380,7 @@ static void ValueOperatorBool() {
 static int NumericLocale() {
     const std::string previous = std::setlocale(LC_NUMERIC, nullptr);
     const char* selected = nullptr;
-    for (const char* name : {"de_DE.UTF-8", "de_DE.utf8", "de-DE", "German_Germany.1252", "fr_FR.UTF-8"}) {
+    for (const char* name : {"xx_COMMA", "de_DE.UTF-8", "de_DE.utf8", "de-DE", "German_Germany.1252", "fr_FR.UTF-8"}) {
         if (std::setlocale(LC_NUMERIC, name) && std::strcmp(std::localeconv()->decimal_point, ",") == 0) {
             selected = name;
             break;

core/libs/tests/numeric-locale/comma.charmap

@@ -0,0 +1,135 @@
+<code_set_name> ANYPS5_COMMA
+<comment_char> %
+<escape_char> /
+<mb_cur_max> 1
+<mb_cur_min> 1
+CHARMAP
+<U0000> /x00
+<U0001> /x01
+<U0002> /x02
+<U0003> /x03
+<U0004> /x04
+<U0005> /x05
+<U0006> /x06
+<U0007> /x07
+<U0008> /x08
+<U0009> /x09
+<U000A> /x0a
+<U000B> /x0b
+<U000C> /x0c
+<U000D> /x0d
+<U000E> /x0e
+<U000F> /x0f
+<U0010> /x10
+<U0011> /x11
+<U0012> /x12
+<U0013> /x13
+<U0014> /x14
+<U0015> /x15
+<U0016> /x16
+<U0017> /x17
+<U0018> /x18
+<U0019> /x19
+<U001A> /x1a
+<U001B> /x1b
+<U001C> /x1c
+<U001D> /x1d
+<U001E> /x1e
+<U001F> /x1f
+<U0020> /x20
+<U0021> /x21
+<U0022> /x22
+<U0023> /x23
+<U0024> /x24
+<U0025> /x25
+<U0026> /x26
+<U0027> /x27
+<U0028> /x28
+<U0029> /x29
+<U002A> /x2a
+<U002B> /x2b
+<U002C> /x2c
+<U002D> /x2d
+<U002E> /x2e
+<U002F> /x2f
+<U0030> /x30
+<U0031> /x31
+<U0032> /x32
+<U0033> /x33
+<U0034> /x34
+<U0035> /x35
+<U0036> /x36
+<U0037> /x37
+<U0038> /x38
+<U0039> /x39
+<U003A> /x3a
+<U003B> /x3b
+<U003C> /x3c
+<U003D> /x3d
+<U003E> /x3e
+<U003F> /x3f
+<U0040> /x40
+<U0041> /x41
+<U0042> /x42
+<U0043> /x43
+<U0044> /x44
+<U0045> /x45
+<U0046> /x46
+<U0047> /x47
+<U0048> /x48
+<U0049> /x49
+<U004A> /x4a
+<U004B> /x4b
+<U004C> /x4c
+<U004D> /x4d
+<U004E> /x4e
+<U004F> /x4f
+<U0050> /x50
+<U0051> /x51
+<U0052> /x52
+<U0053> /x53
+<U0054> /x54
+<U0055> /x55
+<U0056> /x56
+<U0057> /x57
+<U0058> /x58
+<U0059> /x59
+<U005A> /x5a
+<U005B> /x5b
+<U005C> /x5c
+<U005D> /x5d
+<U005E> /x5e
+<U005F> /x5f
+<U0060> /x60
+<U0061> /x61
+<U0062> /x62
+<U0063> /x63
+<U0064> /x64
+<U0065> /x65
+<U0066> /x66
+<U0067> /x67
+<U0068> /x68
+<U0069> /x69
+<U006A> /x6a
+<U006B> /x6b
+<U006C> /x6c
+<U006D> /x6d
+<U006E> /x6e
+<U006F> /x6f
+<U0070> /x70
+<U0071> /x71
+<U0072> /x72
+<U0073> /x73
+<U0074> /x74
+<U0075> /x75
+<U0076> /x76
+<U0077> /x77
+<U0078> /x78
+<U0079> /x79
+<U007A> /x7a
+<U007B> /x7b
+<U007C> /x7c
+<U007D> /x7d
+<U007E> /x7e
+<U007F> /x7f
+END CHARMAP

core/libs/tests/numeric-locale/comma.locale

@@ -0,0 +1,5 @@
+LC_NUMERIC
+decimal_point "<U002C>"
+thousands_sep ""
+grouping -1
+END LC_NUMERIC